I walk less than I used to. My wife and I used to walk 3 miles one way to the place we grocery shopped and then we would carry the bags 3 miles back. It was quite the slog, but we did it for recreations sake. I just moved to a place with lots of trails right in my back yard. Just looked out the window and there were 5 deer laying down at the mouth of our gate. I'll be doing more walking, I already am. I will also be running again but the running has a "purpose," while my walking will just be to walk. Not for exercise or thought. If nothing else, it will be a time of quiet, not reflection but nothingness.